nginx.conf

upstream vnc_proxy {
    server 127.0.0.1:7900;
}

server {
    listen 9010 default_server;
    access_log /access.log;
    error_log /error.log;
    server_name _;

    location /cdp/ {
        proxy_pass http://localhost:4001/;        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    #https://github.com/novnc/noVNC/wiki/Proxying-with-nginx
    location /novnc/ {
          proxy_http_version 1.1;
          proxy_pass http://vnc_proxy/;
          proxy_set_header Upgrade $http_upgrade;
          proxy_set_header Connection "upgrade";
          # VNC connection timeout
          proxy_read_timeout 3600s;
          # Disable cache
          proxy_buffering off;
    }

    location /collaboration/ {
        proxy_pass http://localhost:1234/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location / {
        proxy_pass http://localhost:4000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}